Evaluated the viability of a chemical isolation cap for sediments contaminated with arsenic versus mechanical dredging in support of the United States Environmental Protection Agency (EPA). The scope of work included assessment of long-term exposures, contaminant gradients, cap long-term durability, and associated operation and maintenance. Also assessed the viability of dredging along an existing sheet-pile wall and associated wall stability in support of soil and groundwater remedies already installed.
